-i58 BIBLIOGRAPHY. 



Ri-TZEBrEG. — Anfrage, ob TJeberwallung abgehauener Fiebten und 

 Tannen (StockiiberwaUung) auch an ganz isolirten Stammen, oder 

 nur an verwacbsenen yorkommt. Verb. Bot. Yer. Braudenb. 

 Hl"t. ii. p. 69. 



Baytn", E. — Catalogue metbodique et raisonne des plantes qui crois- 

 sent naturellement dans le departement de I'Tonne. Extr. — 

 Bull. Soc. Sc. de I'Tonne, 1S61. xiv. 39. 



Eegel, E. — Catalogus Plantarum quae in borto Aksakoviano eolun- 

 tier. 1 vol. 8vo. 1860. 



Some novelties are described. 



Kegel, E. — Uebersicbt der Arten der Gattung Thalictriim, welebe 

 im russiscben Eeicbe und den angraenzenden Landern wacbsen. 

 Moskau, 1861. 1 vol. 8vo. Witb 3 plates. 



Preceded by observations on tbe peculiar difficulties of tbe 

 study of tbis group, in wbicb tbe more abundant and complete 

 tbe material, and tbe more closely it is studied, tbe more difficult 

 it becomes to define tbe various forms, wbetber as species or 

 varieties. Tbe species treated of are 19. Tbey are grouped 

 under sections in tbe autbor's C'lavis according to tbe lengtb or 

 absence of a stipes to tbe carpels. Tbe sub-sections rest upon 

 tbe form of tbe filament. jN^o new species are described. T. saxa- 

 tile, Scbl. and T. flextiosum, Bemb. are treated as varieties of 

 T. minus, L. 



Xacbtrage zur Mora der Grebiete des Eussiscben Eeicbs ostlicb 



vom Altai bis Kamtscbatka und Sitka. Being tbe Botany of 

 Eadde's Expedition in Eastern Siberia, 1858-9. Yol. i. pp. 211. 

 Moskau. 1861. Witb 5 plates. 



Tbis enumeration, wbicb extends from Eanuncidaceae to 

 Cruciferae {Brassica), includes, besides Eadde's Baikal, Dahurian 

 and Amur plants, tbose collected by StubendorfF, Eieder and 

 otbers in Kamtscbatka, or on tbe route tbitber. Some critical 

 genera, as Aconitinn, Pulsatilla, &c., are elaborated in mucb 

 detail. Xo new genera are publisbed. 



Monograpbia Betulacearum bucusque cognitarum. Mos- 



quae. 1861. 4to. pp. 129. Witb 17 plates. 



A monograpb of tbe Betulaceae of Bartling, including tbe 

 genera Betula and Alnus. Of tbe former genus 19, of tbe latter 

 14, species are described. A Clavis specieruin is prefixed to tbe 

 detailed Latin descriptions of tbe species of eacb genus ; tbe 

 extended observations are in German. Betula glutinosa. Fries 

 (Summa Yeg.), and B. pubeseens, Ebrb. are treated as varieties 

 of B. alba. 



Eegel, E. et F. AB Heedee. — Annotationes botanicae. Appended 

 to Index Seminum Hort. Betrop. 1861. 



Including a ' Conspectus specierum generis Aconiti, quae in 

 Flora Eossica et in regionibus adjacentibus inveniuntur.' 



Eegnault. — Eecbercbes sur les Affiiiites de Structure des Tiges des 



